Background: Filarial infections continue to pose a great challenge in endemic countries. One of the central goals in the fight against human filarial infections is the development of strategies that will lead to the inhibition of microfilariae (mf) transmission. Keeping mf under a certain threshold within endemic populations will stop transmission and eliminate the infection.Method: A narrative review was carried out to identify the possibilities and limitations of exploring the use of eosinophil responses as an anti-filarial vaccine, and biomarker for the detection of filarial infections. An extensive literature search was performed in online scientific databases including PubMed Central, PubMed, BioMed Central, with the use of predefined search terms.Results: A better understanding of the parasite-host interactions will lead to the development of improved and better treatment or vaccine strategies that could eliminate filariasis as soon as possible. Highlighted in this review is the explorative use of eosinophil-producing CLC/Galectin-10 as a potential biomarker for filarial infections. Also discussed are some genes, and pathways involved in eosinophil recruitments that could be explored for anti-filarial vaccine development. Conclusion:In this short communication, we discuss how eosinophil-regulated genes, pathways, and networks could be critical in providing more information on how reliably a front-line immune player could be exploited for anti-filarial vaccine development and early infection biomarker.
Background and Aim Filarial infections affect over 150 million people in the tropics. One of the major forms of filarial pathologies is lymphedema; a condition where the immune response is significantly altered, resulting in changes in the normal flora. Staphylococcus hominis , a human skin commensal, can also be pathogenic in immunocompromised individuals. Therefore, there is the possibility that S. hominis could assume a different behavior in filarial lymphedema patients. To this end, we investigated the levels of antibiotic resistance and extent of mec A gene carriage in S. hominis among individuals presenting with filarial lymphedema in rural Ghana. Method We recruited 160 individuals with stages I–VII lymphedema, in a cross‐sectional study in the Ahanta West District of the Western Region of Ghana. Swabs from lymphedematous limb ulcers, pus, and cutaneous surfaces were cultured using standard culture‐based techniques. The culture isolates were subjected to Matrix‐Assisted Laser Desorption/Ionization Time of Flight (MALDI‐TOF) mass spectrometry for bacterial identification. Antimicrobial susceptibility testing (AST) was performed using the Kirby–Bauer method. mec A genes were targeted by polymerase chain reaction for strains that were cefoxitin resistant. Results In all, 112 S . hominis were isolated. The AST results showed resistance to chloramphenicol (87.5%), tetracycline (83.3%), penicillin (79.2%), and trimethoprim/sulphamethoxazole (45.8%). Of the 112 strains of S. hominis , 51 (45.5%) were resistant to cefoxitin, and 37 (72.5%) of the cefoxitin‐resistant S. hominis haboured the mec A gene. Conclusion This study indicates a heightened level of methicillin‐resistant S. hominis isolated among filarial lymphedema patients. As a result, opportunistic infections of S. hominis among the already burdened filarial lymphedema patients in rural Ghana may have reduced treatment success with antibiotics.
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